AIR & SPACE MAGAZINE Splendidly-Ended Isolation After 520 days, the hatch opens for six "Martian" travelers. ESA November 4, 2011 Matt Hale Get the latest stories in your inbox every weekday.
/https://tf-cmsv2-smithsonianmag-media.s3.amazonaws.com/filer/Crew%20Training%20631.jpg)